Django tends to fill up horizontal space when adding or editing entries on the admin, but, in some cases, is a real waste of space, when, i.e., editing a date field, 8 chara
A quick and dirty option is to simply provide a custom template for the model in question.
If you create a template named admin/ then the admin will use that template instead of the default. That is, if you've got a model named Person in an app named people, you'd create a template named admin/people/person/change_form.html.
All the admin templates have an extrahead block you can override to place stuff in the , and the final piece of the puzzle is the fact that every field has an HTML id of id_.
So, you could put something like the following in your template:
{% extends "admin/change_form.html" %}
{% block extrahead %}
{{ block.super }}
{% endblock %}